
Littelfuse SMF4L-T1G Low Leakage TVS Diodes
Littelfuse SMF4L-T1G Low Leakage Transient Voltage Suppressor (TVS) Diodes are designed to protect sensitive systems or components from high-voltage and high-energy transients. These diodes offer a fast response time of less than 1ns, low Zener impedance, high surge, and good clamping capabilities. The SMF4L-T1G TVS diode features a unidirectional peak reverse voltage ranging from 5V to 78V and a maximum peak power dissipation of 400W. The SMF4L-T1G low leakage diodes are ideal for protecting I/O interfaces, VCC buses, and other vulnerable circuits used in cellular phones, portable electronics, and business machines. The low leakage is particularly well-suited for battery-operated electronics, power supplies, and other industrial and consumer applications.
Features
- Zener transient overvoltage suppressors
- Working peak reverse voltage range of 5V to 78V for unidirectional
- 400W peak power @ 1ms
- 385mW DC power dissipation @ (TA=25°C)
- Low leakage
- Response time is typically <1ns
- ESD rating of class 3 (>16kV) per human body model
- -55°C to 150°C operating temperature range
- IEC-61000-4-2 ESD 30kV (air) and 30kV (contact)
- Electrical Fast Transients (EFT) rating of 40A per IEC 61000-4-4
- Small footprint area of 8.45mm2
- Supplied in 8mm tape and reel (3,000 units per reel)
- Lead orientation in tape (cathode lead to sprocket holes)
- Pb-free and RoHS compliant
Applications
- Cellular phones
- Portable electronics
- Industrial
- Consumer
- Power supplies
- Business machines
- Battery-operated electronics
Functional Diagram

Performance Graphs

Dimensions Drawing
